Traction wheel



Feb. 24, 1931. w. E. WINE ETAL TRACTION WHEEL Filed April 8, 1925 2 Shoots-Sheet 1 Feb; 24, 1931. w. E. WINE ETAL 1,793,985

TRACTION WHEEL Filed .April 8, 1925 2 Sheets-Sheet 2 Patented Feb. 24, 1931 mamas.

S ENT OFFICE WILLI M .E. WINE AND JOSEPH w. rnorvrnriscrrsnnsn or TOLEDO, OHIO, ASSIGNORS 7 TO THE -FINE RAILIVAY APPLIANCE COMPANY, 03 TOLEDO, OHIO, A CORPORATION OF OHIO Application filed April 8,

The subject matter of the application was disclosed in the sole application Serial No. 10,722 filed February 21, 1925, by the undersigned i"i 'illiam E. Wine for the same inven-.

.5,- tion, y a

This invention relates to a novel andimproved traction wheel ofthe type in which a plurality of traction shoes are mounted uponthe rimof'the wheel and are engaged with teethsecured to'the rim for the purpose ofobtaining the desired traction. These teeth are fastened to the rim by various means such as bolts and it is one ofthe principal objects of our invention to provide in! means 'for relieving the bolt or other fastening means of the shear which it otherwise hasto bear.

notreadily accumulatedirt, which may be used either with or Without traction shoes, and in which one member may be used asa spacergto'support the teeth and to. secure the rim to thespokes. a a

A still further object of the invention is U to provide novel and improved means for joining thespokes of a wheel to the rim thereof in such. manner as to decrease the strain upon the connecting means without impairing the eiiiciency of the wheel.

Another object of the invention is to pro-.

vide a traction shoe of novel and improved form whichwillprevent disturbance of the earth .over which the wheel passes, thereby permitting the shoes to be placed closer together and resulting in a smoother rolling action of the wheel on theshoes.

.Still another object is 'to provide a shoe having ground engaging members which shall be of increased strength over the types now in general use. a

Yet another object of our invention is to provide a novel and improved tooth for at tachment :to a rim of a wheel and which shallbe so proportioned to the other parts of the wheel as to co-operate therewith to the best advantage and without certain disadvanta'geswhich have been present in structures of this type in the past.

In the accompanying drawings in which A further object of the invention is to provide atraction wheel having a rim which will members 4 disposed the wheel. Each spacer member is provided TRACTION WHEEL 1925. Serial No. 21,730.

we have shown a selected embodiment of the invention-- Fig. 1 is a view in elevation of a portion ofa traction. wheel embodying the invention.

Fig. 2 is a vertical section of a portion 01 the wheel shown in Fig. 1 but on an enlarged scale, said section being taken normal to the axis of the wheel. Fig. 3 is a section on the same plane as that of F ig.2, but showing a shoe in a different position relative to the rim.

F 1g. 4 is asection on the line 4-4 of Fig. i i

3, but includinga portion of the hub.

Fig. 5 is a section on the line 5-5 of Fig. 3.

Fig. 6:is an outer plan view of the struc ture shown in Fig. 3.

Referring to the drawings, the numeral 1 designates a hub of any suitable construction having secured thereto the spokes 2. The rim of the wheel comprises spaced rings 3, preferably formed of angle bars bent to the desired form. These rings are held apart the desired distance by a plurality of spacer about the periphery of with a plurality of cars 5 extendingiradially of the wheel and apertured to receive fasten ingmeans, such as rivets ,6 for securing the spacers to the rings. these spacers are the periphery of the wheel so that the wheel may, if desired, be used without teeth or traction shoes on hard roads.

Each of the spacer members is disposed at the end of a spoke, so that the means which is employed to hold the spoke tothe rim may also be employed to hold the spacer member to the rings comprising the rim.

eferring particularly to Fig. 4, it will. be seen that the spokes are preferably arranged in pairs, the spokes of each pair being arranged opposite to eachother andthe ends thereof being received in recesses 7 within the central ears 5 of the spacer members. The extreme ends of the spokes contact with the bottoms *8 of the recesses, as plainly shown in Fig. 4. It will thus be evidentithat the rivets 6, which pass throughthe central ears 5 of the spacer members, not only aid in securing the spacer members to the rim,

It will be noted that received entirely within IUD ywith an abutment lug l' Z,

eral use "such teeth member, namely the spacer member,

c this means it is obvious, that 7 may get between the tooth but alsoedectively secure the spokes in position. By placing the end of a spoke between 3 and an ear 5, and then fastening it is obvious that the. rivet is 'Jlaced in double shear thereby materially increasing the "'eflicie..c y thereof. Further more, by providing the recesses in the ears 5 and having the ends oi'lthespolres engaging the bottoms of these recesses, it

ring by a rivet, it

is provided with transverse ribs Hand-13, at-its endsand along the transverse edges of/the central aperture'll respectively which form additional strengthening means.

Secured to eachspacing member is a pair f oft'eeth'l l, these'teeth preferably being see cured to the spacermemoers by bolts, or the like 15, so that they maybe readily removed, if desired. Each tooth is provided with a lip 16 received within the centralaperture 1101 the spacer member and is vfurther provided on the side adj cent one end of the spaoer'member for a purpose which will presently appear. 1

Referring particularly to Fig. 5, it: will be seen. that each tooth 1 ris narrower than the spacermember 4.. In wheels now in genwidth to rest upon the rings 3." Due to in accuracy of work,

the rings forming tne rim and therefore they were easdybroken.

is independent of the rim, andis required to be made to lit only one surface 01'' one instead ofhaving to bemade to fit alspacer member and two rings. Contact between the spacer member a andeach tooth 14 is had by esgagement of the shoulders 18 disposed immediately'back of the lip 16, by the transverse flanges 19 at the other end of the tooth and by the shoulders 20 immediately back of the flanges 19 The remainder vof the tooth is spaced :trom the spacerriember. By any dirt which and the spacer ineinber 'will do no damage, but will soon be displaced. 1

:gl'oining the teeth and held in place by the same bolts which secure the teeth to the spacer member, is holder-21 which engages the t. reverse bar 22. on thetraction shoe 23 to 7 hold it in co-operative relation to the tee h.

This holder ism'ade of right construction to is obvious that even that shear is ta en away irom the 5 are connected by flanges 9 conhave been made of a it has. often happened that the teeth would. not rest smoothly against 1 This result is viated by our construction in that the tooth line of the bars 25.:

form a bridge, and its ends contact with the lugs 17 which act as abutments to aid in taking the shear from the bolts 15. By this means the teeth are firmly connected together to unison, and as shear is transmitted to one of the teeth due to the tractive effort,

' the same shear is also transmitted to the other tooth. Referring to Fig. 2 for example and assuming the the. wheel s moving in the directioii indicated by] the arrow, itw llbe evident Lll it the shear taken by the tooth at c the right end of the spacer member is transmitted to the bolt holding that tooth in position. the holder 21 to the other tooth and is resisted by its oolt and by the lip 16thereon contacting with the edge ofthe aperture 11. Simi- I when the wheel is rotating in the other c'tion the lip or" the spacer member will aid in takin b the shear from the. two bolts which hold tie 7 in position. l tot only doesthecentral tr 'e 11 provide means to receive thehps teeth nd thus transmit shear, tothe spacer mem oer,

to p event itsnccumulatiori between the rim o shoe where it would clog and hamper,

the op at-ioiroi the teeth and shoe.

novel and: im )roved traction-shoe 23 comprises extend length theiprovided with aiplurality oftransverse ground engaging bars325 and 26, adjacent the- These bars are sub- The shear is further transmitted by 16 on the tooth at the right butit also provides passage: for, dirt,

apair of'tra'ck sections '24: which vise of the shoe. and ma IJOSl tion to support the r1ngs'3. The shoe is tur- I these ribs also tyin the bars 25 to lie transverse ground engaging bar 29 which, Fig. 6,:is offset from the.

best shown in 2 8:, this rib does not extend to the same depth as the bar. 29.

By this construction will be seen that the bars 25 and 29 are, much stronger thanif they were madeflin the form of one bar extending entirely across the shoe. Moreover, as best shown in Fig. 2, there is a snbstantiall'distance between the bars 29 on acent shoes. This means that thecolumn of dirt between the cross bars is relatively long one and therefore is not so apt to be disturbed by engagement or the bars and application of force through the bars, as would be the-V case if the column were relatively short as where the the same or ildjOlil co-operate with the bar 29 to further insure against disturbance of the dirt and to give a firm grip of the shoe with the ground.

The transverse bar 22 and the inner faces of the ground engaging bar 29 and the rib 30 are formed to co-operate with the surfaces be made without departing and without sacrificing the advantages of the of the teethla, as is well known in the art.

We are aware that changes in the form,

construction and arrangement of parts may from the spirit invention and we reserve the right to make all such changes as fairly fall withmthe scope of the following claims.

; i We claim:

1. A traction wheel comprising a rim, said rim being formed of spaced rings, spacer members between said rings, teeth secured toflsaid spacer members, a shoe adapted to co-operate with said teeth and provided with a transverse bar, and means on sald rim loosely engaging said bar and securing said shoe to the rim. 1, a y p 2. A traction wheel comprising a rim 1 formed of spaced rings, a plurality of spacer members between said'rings, a pair of teeth on each of said spacer members and each having a lip received within an aperture 1 therein, and means connecting said teeth to .cause them to act in unison andto transmit shearing stress from one to the other.

3. A traction wheelcomprising a rim, a

plurality of pairs of teeth thereon, means to secure each tooth to said rim, means on each tooth co-acting with said rim to relieve said securing means of shearing stress, and means thereto,

connecting said teeth to distribute the shearing stress therebetween.

A. A traction wheel comprising a rim composed of spaced rings, a plurality of spacer said rings and secured thereto, each ofsaid members being provided with a central aperture, and a tooth disposed on either side of said aperture peripherally of said rim, each tooth having a lip engaged withthe edge of said aperture.

5. A traction wheel comprising a rim composed of spaced rings, a plurality of spacer members between said rings and secured each of said members being provided with a central aperture, a tooth disposed on either side of said aperture peripherally of said rim, each tooth having a lip engaged with the edge of said aperture, and means connecting said teeth todistribute shear from one-to the other. i

6. A traction wheel comprising a rim coma place by a plurality of spacer said rings and secured with the edge of said aperture, a bolt securing each tooth to said member, and a bridge member having its ends secured in said bolts and connecting said teeth.

7 A traction Wheel comprising a rim com posed of spaced rings, a plurality of spacer members between said rings and secured thereto, each of said members being provided with a central aperture, a tooth disposed on either side of said aperture peripherally of said rim, each tooth having a lip engaged with the edge of said aperture,a bolt securing each tooth to said member, a bridge member having its ends secured in place by said bolts and connecting-said teeth, and abutments on said teeth engaging the ends of said bridge member.

8. A traction wheel comprising a rim, a plurality of pairs of teeth secured to said rim, a bridge member connected to each pair of said teeth to distribute shear therebetween, and abutments on said teeth engaging the ends of said bridge member.

9. A traction wheel comprising a rim formed of spaced rings, a plurality of spacer members between said thereto, each of said members having a cenrings and secured tral aperture, teeth secured to said member on either side of said aperture peripherally of the rim, a holder connecting said teeth, and a shoe having a transverse bar co-operating with said holder to secure said shoe to said rim.

10. A traction wheel comprising a rim formed of spaced rings, a plurality of spacer members between said rings and secured thereto, each of said members being provided with an aperture, teeth on either side of said aperture peripherally of said rim, each tooth having a lip engaging the edge of said aperture, and a holder secured to said rim and engaging said transverse bar to secure said shoe to said rim.

WILLIAM E. WINE JOSEPH W. PROMENSCHENKEL.

a shoe having a central transverse bar, 

